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For which values of x is the expression undefined?
(3x-12)/(x^(2)-25)

For which values of x \mathrm{x} is the expression undefined?\newline3x12x225\frac{3 x-12}{x^{2}-25}

Full solution

Q. For which values of x \mathrm{x} is the expression undefined?\newline3x12x225\frac{3 x-12}{x^{2}-25}
  1. Define Undefined Rational Expression: Determine when a rational expression is undefined.\newlineA rational expression is undefined when its denominator is equal to 00, since division by 00 is not allowed in mathematics.
  2. Identify Denominator: Identify the denominator of the given expression.\newlineThe denominator of the given expression is x225x^2 - 25.
  3. Set Denominator to Zero: Set the denominator equal to zero to find the values of xx that make the expression undefined.x225=0x^2 - 25 = 0
  4. Solve Denominator Equation: Solve the equation from Step 33.\newlinex225=0x^2 - 25 = 0 can be factored into (x5)(x+5)=0(x - 5)(x + 5) = 0.
  5. Find Values of x: Find the values of xx that make each factor equal to zero.\newlineSetting each factor equal to zero gives us two equations:\newlinex5=0x - 5 = 0 and x+5=0x + 5 = 0.
  6. Solve Equations for x: Solve each equation for x.\newlineSolving x5=0x - 5 = 0 gives x=5x = 5.\newlineSolving x+5=0x + 5 = 0 gives x=5x = -5.

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